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Heart|Lab Grown|IGI

1.54ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG745505078

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG745505078

Diamond specifications and retailer prices

From €255 EUR
As of November 4, 2026
Save €2,230 EUR (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €2,485 EUR at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.54ct lab-grown heart diamond

This 1.54ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG745505078 or 745505078. Listed at 12 retailers as of November 4, 2026, with prices from €255 to €2,485, a €2,230 spread on the same certified stone. Brilliant Earth lists it at €2,485. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG745505078
Dimensions8.20 × 7.03 × 4.50 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.20 mm7.03 mm1.54 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG745505078
Side View
Table 60.0%Crown 35.1°Girdle: STK-THKPavilion 37.1°Culet: NoneDepth 54.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €2,485 EUR|Low: €255 EUR|High: €2,956 EUR|Avg: €1,089 EUR|-14.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 5, 2026
Retailer 11€255 EUR
Retailer 16€295 EUR
Retailer 5€339 EUR
Retailer 17€506 EUR
Retailer 14€518 EUR
Retailer 3€549 EUR
Retailer 7€691 EUR
Retailer 8€747 EUR
Retailer 15€817 EUR
Retailer 13€865 EUR
Retailer 12€1,119 EUR
Retailer 2€1,234 EUR
Retailer 10€1,391 EUR
Retailer 9€1,447 EUR
Retailer 6€1,477 EUR
Retailer 4€2,272 EUR
Brilliant Earth€2,485 EUR

28 data points across 17 retailers

12 retailers€255 EUR to €2,485 EUR

A
Cheapest Retailer
-
€255 EUR
A
Retailer 2
-
€295 EUR
View
A
Retailer 3
-
€339 EUR
View
Final sale: no returns
A
Retailer 4
-
€506 EUR
View
A
Retailer 5
-
€518 EUR
View
A
Retailer 6
-
€549 EUR
View
A
Retailer 7
-
€817 EUR
View
A
Retailer 8
-
€865 EUR
View
B+
Retailer 9
-
€1,119 EUR
View
B+
Retailer 10
-
€1,391 EUR
View
B
Retailer 11
-
€2,272 EUR
View
Most Expensive
B
Brilliant Earth
21415803Y · Nov 4
€2,485 EUR
$2,800 USD
View
11 more retailers have this diamond
Prices start from €255 EURSave up to €2,230 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.54ct Heart
€255 EUR